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This is a very timely question as I am just in the process of boxing up my Kuhne 10G equipment.
I am very puzzled by the specifications on the website about the 2W amp which is the one I am using. The current consumption is specified as 1.6 A. That’s 22.2W. So power dissipation Is 20.4W. Power dissipated equal power in minus power minus RF put. If that’s true it’s a wee bit more that 5W. Seems rather inefficient.
Have I mixed my sums up?
I am new to this so I look forward to some data from people using the gear.
On Aug 11, 2020, at 5:03 AM, Chris Bartram G4DGU <chris@...> wrote:
My comment is that you are probably only dissipating 5W max., so
the heatsinking you have is probably adequate. However, you would
find moving the heatsink you've fitted internally to the outside
of the box advantageous, but only marginally. I've made some
measurements in the past concerned with dissipating higher powers,
and providing precautions are taken to ensure that you make good
(thermal) contact to the surfaces, the thermal resistance of
typical diecast boxes when an external heatsink is fitted is not
On 11/08/2020 11:46, militaryoperator
via groups.io wrote:
Boxing my Kuhne 10G and 2W amp. Does this look like enough
heatsink around the amp, it will be bolted to the box wall as
well? I wanted copper but ain't got any.
Also, what's better, heatsink compound between surfaces or
the blue heatsink pads? Was thinking pads a little less messy
if moving stuff.